Vocab/Terms
Eras of Earth
Lesson Review
Review 1
Review 2
100
This is the principle that states that geologic changes have always happened and they happen slowly.
Uniformitarianism
100
What part of Earth's history accounts for 90% what has happened on Earth?
Precambrian Time
100
How old is Earth?
4.6 billion years old
100
This is the ordering of objects based on their age.
Relative Dating
100
What are the three types of volcanoes?
cinder cone, composite, shield
200
This is the study of Earth and its history
Geology
200
In this era, the dinosaurs ruled Earth
Mesozoic Era
200
How is the age of Earth found?
Radiometric dating of meteorites
200
This is the process of finding the absolute age of an object
Absolute Dating
200
What are the three tectonic plate boundaries?
convergent, divergent, transform
300
This is the division of Earth's history based on different major events.
Geologic Time Scale
300
There was an abundance of life in the ocean during this era.
Paleozoic Era
300
Does an earthquake support catastrophism or uniformitarianism? Why?
Catastrophism, sudden
300
This type of absolute dating is used for the oldest rocks
Uranium Lead Dating
300
what are the three types of faults?
strike slip, normal, reverse
400
This is the principle that states that geologic changes on Earth happen suddenly.
Catastrophism
400
The continents shaped themselves as we see them today during this time.
Cenozoic Era
400
List the major divisions of the geologic time scale from largest to smallest.
Eons, eras, periods, epochs.
400
What are the five ways that rocks are disturbed?
folding, faulting, intrusions, unconformities, tilting
400
what are the compositional layers of Earth?
crust, mantle, core
500
Name two examples of each principle that geologists believe are responsible for the geologic processes of Earth.
See Answers
500
When did the polar ice caps form? Where are they located?
Cenozoic, north and south pole
500
Could humans have existed with dinosaurs? Why/why not.
no
500
What are the five ways fossils are preserved?
buried in rock, trapped in amber, trapped in asphalt, frozen, petrified
500
what are the physical layers of Earth from the surface down?
lithosphere, asthenosphere, mesosphere, outer core, inner core
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